KR20170017010A - 경쟁 기반 업링크 데이터 전송을 위한 방법 및 장치 - Google Patents
경쟁 기반 업링크 데이터 전송을 위한 방법 및 장치 Download PDFInfo
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- KR20170017010A KR20170017010A KR1020177003274A KR20177003274A KR20170017010A KR 20170017010 A KR20170017010 A KR 20170017010A KR 1020177003274 A KR1020177003274 A KR 1020177003274A KR 20177003274 A KR20177003274 A KR 20177003274A KR 20170017010 A KR20170017010 A KR 20170017010A
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Abstract
Description
도 1a는 하나 이상의 실시예를 구현할 수 있는 예시적인 통신 시스템의 계통도이다.
도 1b는 도 1a에 도시된 통신 시스템에서 사용될 수 있는 예시적인 무선 송수신 유닛(WTRU)의 계통도이다.
도 1c는 도 1a에 도시된 통신 시스템에서 사용될 수 있는 예시적인 무선 액세스 네트워크 및 예시적인 코어 네트워크의 계통도이다.
도 2a 및 도 2b는 경쟁 기반 업링크 채널에 대한 액세스를 제한하기 위해 사용되는 스케줄링 요청 전송을 위한 서브프레임 타이밍도이다.
도 3은 경쟁 기반 업링크 채널에 대한 액세스를 제한하기 위해 사용되는 버퍼 상태 리포트를 위한 서브프레임 타이밍도이다.
도 4a 및 도 4b는 경쟁 기반 업링크 채널에 대한 액세스를 제한하기 위해 사용되는 업링크 채널 전송을 위한 서브프레임 타이밍도이다.
도 5a 및 도 5b는 경쟁 기반 업링크 및 경쟁 없는 업링크에서 동시 전송을 위한 방법을 보인 흐름도이다.
도 6a 내지 도 6c는 경쟁 기반 업링크 및 랜덤 액세스 채널에서 동시 전송을 위한 방법을 보인 흐름도이다.
도 7은 서브프레임에 대한 업링크 허가를 수신한 것에 불구하고 경쟁 기반 업링크 채널에 대한 액세스의 조건적 제한 방법을 보인 흐름도이다.
도 8 내지 도 10은 경쟁 기반 업링크 채널에 대한 서브채널 및 리소스 블록 지정(assignment)의 각종 예를 보인 도이다.
SR | 만일 SR이 서브프레임 X(0≤X≤Xmax)에서 PUCCH에 대해 스케줄되거나 또는 SR이 이전 서브프레임 X(Xmin≤X<0)의 PUCCH에서 최근에 전송되었으면 CB-PUSCH 액세스가 금지된다. |
SR/UL-SCH 허가 | WTRU는 PUCCH를 통해 CB-PUSCH 전송 및 SR을 둘 다 보낸다. e노드-B는 하나의 요청을 허가하고 임의의 다른 펜딩 요청을 무시한다. |
BSR | 만일 BSR이 전송되었지만 보고된 관련 데이터가 아직 전송되지 않았거나 또는 적어도 하나의 BSR이 이전 서브프레임 Y(Ymin≤Y<0)에서 최근에 전송되었으면 CB-PUSCH 액세스가 금지된다 |
PUSCH/CB-PUSCH | 데이터가 과거 K 서브프레임 내의 PUSCH 또는 CB-PUSCH에서 최근에 전송되었으면 CB-PUSCH 액세스가 금지된다. |
UL 부하 | WTRU는 업링크에서 사용된 경쟁없는 리소스 및/또는 사용되고 있는 경쟁 기반 리소스의 양을 결정하고 CB-PUSCH에 액세스할 것인지 평가한다. |
필수 필드 | 필드 크기 |
포맷 0/포맷 1A 차별을 위한 플래그 | 1 비트 |
변조 및 코딩 방식과 용장 버전 MCS가 표준화되거나 고정되면 이 필드는 비사용으로 된다. MCS의 제한된 집합만이 CB-PUSCH에 대하여 사용되면 절두형 MCS 필드가 사용되고 MCS 비트의 나머지는 비사용 비트로 된다. |
5 비트 |
리소스 블록 지정 및 호핑 리소스 할당 | 일반 할당의 유형에 따라 규정된다(예를 들면, 고정되거나 대역폭에 의존한다) |
비사용 필드 | 필드 크기 |
호핑 플래그 | 1 비트 |
새로운 데이터 표시자 | 1 비트 |
스케줄된 PUSCH에 대한 전송 전력 제어(TPC) 커맨드 | 2 비트 |
복조 기준 신호(DM RS)에 대한 주기적 편이 | 3 비트 |
UL 지수(이 필드는 업링크-다운링크 구성 0을 가진 시분할 다중화(TDD) 동작에만 적용되고 주파수 분할 다중화(FDD)에는 없다) | 2 비트 |
다운링크 지정 지수(DAI)(이 필드는 업링크-다운링크 구성 1~6을 가진 TDD 동작에만 적용되고 FDD에는 없다) | 2 비트 |
채널 품질 표시자(CQI) 요청 | 1 비트 |
MCS가 표준화 또는 절두된 경우의 변조 및 코딩 방식과 용장 버전 | 1~5 비트 |
필드 | 크기 |
MCS 및 용장 버전. MCS가 표준화 또는 고정되어 있으면, 이 필드는 사용되지 않는다. 만일 MCS의 제한된 집합만이 CB-PUSCH에 대하여 사용되면, 절두형 MCS 필드가 사용될 것이고(5 비트 미만), MCS 비트의 나머지는 비사용으로 된다. | 5 비트 |
리소스 블록 지정 및 호핑 리소스 할당 | 일반 할당의 유형에 따라 규정된다(예를 들면, 고정되거나 대역폭에 의존한다) |
104: RAN
106: 코어 네트워크
108: PSTN
110: 인터넷
112: 기타 네트워크
Claims (10)
- 무선 송수신 유닛(wireless transmit/receive unit; WTRU)에 있어서,
경쟁 기반(contention-based) 액세스 및 경쟁 없는(contintion-free) 액세스를 이용하여 주파수들 상에서 전송하도록 동작가능한 송수신기 회로; 및
프로세서를 포함하고,
상기 송수신기 회로 및 상기 프로세서는 제1 물리 다운링크 제어 채널(physical downlink control channel; PDCCH)에서 제1 다운링크 제어 정보(downlink control information; DCI)를 포함하는 제1 신호를 수신하고, 상기 수신된 제1 DCI에 응답하여 경쟁 없는 액세스를 이용하여 주파수 상에서 제1 롱텀 에볼루션(Long term evolution; LTE) 물리 업링크 공유 채널(physical uplink shared channel; PUSCH) 전송 신호(transmission)를 전송하도록 동작가능하고,
상기 송수신기 회로 및 상기 프로세서는 제2 PDCCH에서 제2 DCI - 상기 제2 DCI는 경쟁 기반 액세스를 이용하는 주파수 상의 리소스 할당을 표시(indicating)하는 것임 - 를 포함하는 제2 신호를 수신하고, 상기 제2 DCI의 표시된 리소스 할당에 응답하여 경쟁 기반 액세스를 이용하여 주파수 상에서 제2 LTE PUSCH 전송 신호를 전송하도록 동작가능한 것인, 무선 송수신 유닛(WTRU). - 제1항에 있어서, 상기 WTRU는 셀 무선 네트워크 임시 식별자(cell radio network temporary indentifier; C-RNTI) 및 경쟁 기반 통신과 관련된 상이한 무선 네트워크 임시 식별자(radio network temporary indentifier; RNTI)를 갖는 것인, 무선 송수신 유닛(WTRU).
- 제1항에 있어서, 상기 제2 DCI는 DCI 포맷 0을 포함하는 것인, 무선 송수신 유닛(WTRU).
- 제1항에 있어서, 상기 제2 DCI는 DCI 포맷 0A를 포함하는 것인, 무선 송수신 유닛(WTRU).
- 제1항에 있어서, 상기 제2 LTE PUSCH 전송 신호는 트리거된 PUSCH 전송 신호를 포함하는 것인, 무선 송수신 유닛(WTRU).
- 경쟁 기반(contention-based) 액세스 및 경쟁 없는(contintion-free) 액세스를 이용하여 주파수들 상에서 무선 송수신 유닛(wireless transmit/receive unit; WTRU)으로부터 전송하는 방법에 있어서,
제1 물리 다운링크 제어 채널(physical downlink control channel; PDCCH)에서 제1 다운링크 제어 정보(downlink control information; DCI)를 수신하는 단계;
상기 수신된 제1 DCI에 응답하여 경쟁 없는 액세스를 이용하여 주파수 상에서 제1 롱텀 에볼루션(Long term evolution; LTE) 물리 업링크 공유 채널(physical uplink shared channel; PUSCH) 전송 신호(transmission)를 전송하는 단계;
제2 PDCCH에서 제2 DCI - 상기 제2 DCI는 경쟁 기반 액세스를 이용하는 주파수 상의 리소스 할당을 표시하는 것임 - 를 수신하는 단계; 및
상기 제2 DCI의 표시된 리소스 할당에 응답하여 경쟁 기반 액세스를 이용하여 주파수 상에서 제2 LTE PUSCH 전송 신호를 전송하는 단계를 포함하는, 전송하는 방법. - 제6항에 있어서, 상기 WTRU는 셀 무선 네트워크 임시 식별자(cell radio network temporary indentifier; C-RNTI) 및 경쟁 기반 통신과 관련된 상이한 무선 네트워크 임시 식별자(radio network temporary indentifier; RNTI)를 갖는 것인, 전송하는 방법.
- 제6항에 있어서, 상기 제2 DCI는 DCI 포맷 0을 포함하는 것인, 전송하는 방법.
- 제6항에 있어서, 상기 제2 DCI는 DCI 포맷 0A를 포함하는 것인, 전송하는 방법.
- 제6항에 있어서, 상기 제2 LTE PUSCH 전송 신호는 트리거된 PUSCH 전송 신호를 포함하는 것인, 전송하는 방법.
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